The Netflix TechBlog

FEBRUARY 18, 2022

In this blog post, we will give an overview of the Rapid Event Notification System at Netflix and share some of the learnings we gained along the way. Personalized Experience Refresh Netflix Recommendation engine continuously refreshes recommendations for every member. This helps limit the outgoing traffic footprint considerably.

Systems 334

Systems Traffic Architecture Mobile 334

Adrian Cockcroft

MAY 6, 2023

They state in the blog that this was quick to build, which is the point. They state in the blog that this was quick to build, which is the point. A real-time user experience analytics engine for live video, that looked at all users rather than a subsample. He is also clear about when microservices aren’t useful.

Serverless 145

Serverless Lambda Best Practices Traffic 145

The Netflix TechBlog

SEPTEMBER 2, 2020

For engineers, instead of whodunit, the question is often “what failed and why?” An engineer can find herself digging through logs, poring over traces, and staring at dozens of dashboards. In an earlier blog post, we discussed Telltale , our health monitoring system. The more complex a system, the more places to look for clues.

Latency 296

Latency Transportation Engineering Traffic 296

Dynatrace

JUNE 25, 2020

The network latency between cluster nodes should be around 10 ms or less. Minimized cross-data center network traffic. – A Dynatrace customer, Head of Performance Engineering. Regular Dynatrace Managed deployments can work seamlessly when a maximum of two nodes are down at a time and the network has low latency.

Availability 251

Availability Hardware Latency Traffic 251

Dynatrace

JULY 24, 2023

In this blog, we will dive into the transformative power of answer-driven automation. Imagine having an AI engine that comprehends the complete context of the transaction and intelligently determines whether to send a discount code—and which one to send. Full contextual awareness helps the AI engine make informed decisions.

DevOps 225

DevOps Traffic Efficiency Servers 225

Dynatrace

MAY 19, 2022

A service-level objective ( SLO ) is the new contract between business, DevOps, and site reliability engineers (SREs). In their new dashboard, they added dimensions for load, latency, and open problems for each component. The “Four Golden Signals” include the following: Latency. SLO dashboard defined by architectural boundary.

Automotive 275

Automotive Latency Architecture Azure 275

Percona

DECEMBER 11, 2023

DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads. Amazon RDS extends support for DLVs across various database engines: MariaDB: 10.6.7 Who can benefit from DLV? and later v10 versions MySQL: 8.0.28 and later v13 versions, 14.7

AWS 94

AWS Benchmarking Performance Traffic 94

The Netflix TechBlog

SEPTEMBER 8, 2020

This allowed Android engineers to have much more control and observability over how we get our data. Image taken from a previously published blog post As you can see, our code was just a part (#2 in the diagram) of this monolithic service. If we pare down the problem to absolute basics, we essentially have two services returning JSON.

Latency 233

Latency Cache Java Traffic 233

The Netflix TechBlog

OCTOBER 19, 2020

a Netflix member via Twitter This is an example of a question our on-call engineers need to answer to help resolve a member issue?—?which In our previous blog post we introduced Edgar, our troubleshooting tool for streaming sessions. We needed to increase engineering productivity via distributed request tracing.

Infrastructure 233

Infrastructure Transportation Storage Open Source 233

The Netflix TechBlog

AUGUST 13, 2020

Over the years we’ve learned from on-call engineers about the pain points of application monitoring: too many alerts, too many dashboards to scroll through, and too much configuration and maintenance. Regional traffic evacuations. A regional traffic shift means one region ends up with zero traffic while another region has double.

Monitoring 210

Monitoring Tuning Traffic Metrics 210

Percona

MARCH 29, 2023

In this blog, we will discuss both data and network-level compression offered in MongoDB. Data compression MongoDB offers various block compression methods used by the WiredTiger storage engine, like snappy, zlib, and zstd. You can learn more about it in the blog MongoDB: Why Pay for Enterprise When Open Source Has You Covered?

Storage 105

Storage Network Open Source Latency 105

Dynatrace

JUNE 27, 2022

RUM, however, has some limitations, including the following: RUM requires traffic to be useful. Because RUM relies on user-generated traffic, it’s hard to indicate persistent issues across the board. connectivity, access, user count, latency) of geographic regions. Real user monitoring limitations. Watch webinar now!

Best Practices 180

Best Practices Monitoring Wireless Traffic 180

Dynatrace

SEPTEMBER 30, 2021

In case of a spike in traffic, you can automatically spin up more resources, often in a matter of seconds. Likewise, you can scale down when your application experiences decreased traffic. For example, as traffic increases, costs will too. This can dramatically decrease network latency and its effect on the end-user experience.

Cloud 169

Cloud Traffic Best Practices Strategy 169

Dynatrace

APRIL 26, 2022

STM generates traffic that replicates the typical path or behavior of a user on a network to measure performance for example, response times, availability, packet loss, latency, jitter, and other variables). The post How digital experience monitoring helps deliver business observability appeared first on Dynatrace blog.

Monitoring 209

Monitoring Social Media IoT Metrics 209

Percona

JUNE 22, 2023

In this blog, we will explore various MySQL KPIs that are basic and essential to track using monitoring tools like PMM. PMM captures the MySQL connection matrix It is important to provide appropriate max_connections and also monitor max_used_connections, max_used_connections_time to review the history of max usage to estimate the traffic.

Performance 102

Performance Monitoring Traffic Database 102

Dynatrace

JULY 6, 2020

Azure Traffic Manager. All this comes with the Dynatrace zero-configuration approach, automatic service detection, continuous data capture in context, and answers, not just data, from the Dynatrace Davis AI engine, making you ready for large-scale Azure deployments. Azure Batch. Azure DB for MariaDB. Azure DB for MySQL.

Azure 150

Azure Cloud Big Data Virtualization 150

The Netflix TechBlog

NOVEMBER 2, 2021

Such coupling problems abound with our Reloaded architecture, and hence the Media Cloud Engineering and Encoding Technologies teams have been working together to develop a solution that addresses many of the concerns with our previous architecture. This enables us to use our scale to increase throughput and reduce latencies.

Media 171

Media Innovation Metrics Latency 171

Dotcom-Montior

NOVEMBER 16, 2021

In this article, we will take a deeper dive into the various SRE principles and guidelines that a site reliability engineer practices in their role. Google was the first company to create, embrace, and put support behind the role of site reliability engineering. Traffic refers to the amount of user demand, or load, is on the system.

Monitoring 91

Monitoring Google DevOps Engineering 91

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. You have two hands: observation and experimentation.

Speed 126

Speed Java AWS Virtualization 126

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Blocking write traffic by locking tables. Writing events to any output.

Database 197

Database Traffic Transportation Open Source 197

All Things Distributed

JUNE 21, 2018

That learning is at the heart of this blog post—databases are built for a purpose and matching the use case with the database will help you write high-performance, scalable, and more functional applications faster. The purpose of DynamoDB is to provide consistent single-digit millisecond latency for any scale of workloads.

Database 167

Database AWS Games Latency 167

The Netflix TechBlog

DECEMBER 17, 2019

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks. Blocking write traffic by locking tables. Writing events to any output.

Database 212

Database Traffic Transportation Open Source 212

MachMetrics

OCTOBER 16, 2019

However, there is excitement around Starlink for other reasons – namely, the implications it might have for internet speed and latency – even by just a small amount (20 milliseconds on average). Starlink’s Goal: Reduce Internet Latency. What does Starlink and Reduced Latency have to do with me?

Internet 44

Internet Internet Latency Speed 44

Dotcom-Montior

NOVEMBER 24, 2021

Within an organization, the responsibility of monitoring these large distributed systems typically falls on site reliability engineering (SRE) teams. This also includes latency, or the time it takes for data or a request to get through a network. Types of Distributed Systems. Read : SRE Principles: The 7 Fundamental Rules.

Systems 74

Systems Monitoring Hardware Network 74

All Things Distributed

JANUARY 18, 2012

s web-based applications often encounter database scaling challenges when faced with growth in users, traffic, and data. Behind the scenes, Amazon DynamoDB automatically spreads the data and traffic for a table over a sufficient number of servers to meet the request capacity specified by the customer.

Scalability 167

Scalability Database Ecommerce Latency 167

Alex Russell

JULY 14, 2021

The 85% global-share OS (Android) has historically facilitated browser choice and diversity in browser engines. Engine diversity is essential, as it is the mechanism that causes competition to deliver better performance, capability, privacy, security, and user controls. More on that when we get to iOS. " you might ask?

Google 121

Google Mobile Engineering Internet 121

Percona

JULY 1, 2023

In this blog, we will answer all of these important questions and provide a general overview comparing the two database services, Aurora vs RDS. What we should really compare is the MySQL and Aurora database engines provided by Amazon RDS. What are the differences between Aurora and RDS? How do I choose which one to use?

AWS 52

AWS Database Serverless Storage 52

Testsigma

JANUARY 30, 2021

Test how user-friendly an application is: Google search engine gives high priority to websites in comparison to desktop apps. Testing helps in finding latency time of an application: Users prefer to use mobile phones over desktop when they are looking for any query, booking flight/movie ticket. appeared first on Testsigma Blog.

Mobile 52

Mobile Testing Website Internet 52

O'Reilly Software

DECEMBER 11, 2017

In this blog post, we discuss an asynchronous pattern for implementing user-initiated requests via decoupled messages in a manner that can handle requests from multiple users and handle late-arriving messages. This approach also minimizes network traffic throughout the architecture, as all external calls are handled by this service.

Architecture 68

Architecture Government Latency Efficiency 68

Brendan Gregg

SEPTEMBER 25, 2021

A Cassandra database cluster had switched to Ubuntu and noticed write latency increased by over 30%. Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. You have two hands: observation and experimentation.

Speed 40

Speed Java AWS Virtualization 40

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. The CFQ works well for many general use cases but lacks latency guarantees. The deadline excels at latency-sensitive use cases ( like databases ), and noop is closer to no schedule at all.

Best Practices 52

Best Practices Design Tuning Database 52

The Netflix TechBlog

NOVEMBER 12, 2019

In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. As such, the system uses time-travel mechanisms for more precise reconstruction of an experience and coordinates time-travel across multiple systems. Why Is This Hard?

Metrics 124

Metrics Government Systems Testing 124

The Netflix TechBlog

NOVEMBER 12, 2019

In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. As such, the system uses time-travel mechanisms for more precise reconstruction of an experience and coordinates time-travel across multiple systems. Why Is This Hard?

Metrics 100

Metrics Government Systems Testing 100

The Netflix TechBlog

NOVEMBER 12, 2019

In this blog post, we will go into more detail about this page simulation system and discuss some of the lessons we learned along the way. As such, the system uses time-travel mechanisms for more precise reconstruction of an experience and coordinates time-travel across multiple systems. Why Is This Hard?

Metrics 100

Metrics Government Systems Testing 100

Smashing Magazine

AUGUST 9, 2021

You may have read some blog posts or heard conference talks on this topic and think you know the answers. For example, if the device is a firewall, it might be configured to block all traffic containing (unknown) extensions. In the early days of the Internet, encrypting traffic was quite costly in terms of processing.

Transportation 145

Transportation Internet Internet Network 145

Smashing Magazine

AUGUST 22, 2021

Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).

Performance 106

Performance Network Latency Servers 106

Abhishek Tiwari

DECEMBER 25, 2017

On this blog from very early on, we have advocated the concept of service mesh. Both Istio and Linkerd are bit heavyweights and initial focus seems to be on large engineering teams. Due to the one-to-one relationship between a pod and a deployment, the mapping between traffic flows and pod a lot easier to manage. Prerequisite.

Traffic 40

Traffic Latency Google Servers 40